Everything an agent (or you) needs to send and receive email through Poste.
curl -X POST https://poste.sh/v1/mailbox # → 402 with payment terms in the body
# pay with any x402 v2 client, retry → { address, token }
curl "https://poste.sh/v1/mailbox/code?wait=55" -H "Authorization: Bearer <token>"
No signup. The bearer token returned at provision time is the only credential. Rotate: POST /v1/mailbox/keys/rotate.
This deployment runs on Base Sepolia testnet: POST https://poste.sh/dev/provision?sku=burner provisions free for testing.
Contact · abuse@poste.sh